Image leaks of unknown HTC smartphone

While surfing my Twitter feed this morning, a picture of a few type of HTC software popped up. It seems to be a smartphone as you'll be able to see the BoomSound speaker, nevertheless it’s most probably now not the impending One (M9). From what we all know concerning the One (M9), it's going to game so much decrease profile BoomSound audio system, so what is that this mysterious tool?